Foldable step ladder



FIG. 1 is a right side elevational view of a foldable step ladder showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a front elevational view thereof when ladder is adapted to a folded position;

FIG. 5 is a rear elevational view thereof when ladder is adapted to a folded position; and,

FIG. 6 is a perspective view thereof when the ladder is adapted to an open position.

The stippling shown on the steps represents an irregular surface. 

The ornamental design for a foldable step ladder, as shown and described. 